The day in AI
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Launches and products
27 Nov 2025DeepSeekDeepSeekMath-V2 Open 685B proof model that uses a trained verifier as reward. It reaches gold-level on IMO 2025 and CMO 2024 and 118/120 on Putnam 2024 with scaled test-time compute.27 Nov 2025Alibaba (Tongyi)Z-Image Z-Image is a 6B single-stream diffusion transformer trained for roughly 314K H800 GPU-hours (about $630K) and competitive with much larger image models.